ship navigation

Most of the electronic sea chart navigation systems available measure the geographic coordinates of a ship by the GPS ( i.e. global position system), so that it is necessary for the electronic sea chart system to test timely the precision of the GPS by radar signals.

现有的电子海图导航系统主要靠全球定位系统（GPS）来测量舰船的地理坐标，用雷达信号适时检验GPS的定位精度就成为电子海图系统不可少的功能。

Discussion on ship navigation safety management in wintertime

浅谈冬季船舶航行安全管理

But, an excellent ship navigation performance design demands to be considered the above monomial navigation performance.

但是，优秀的船舶航行性能设计要综合考虑上述单项航行性能，这是目前的一个难点。

This system can provide latest navigation-supporting information for in-and-out port ships in shortest time so as to ensure ship navigation safety.

该系统为进出港船舶在最短时间内获取发布的港口助航信息提供了方便，增进了船舶航行安全。

During the period, I got timely support from teachers of Information& Technology College, Research Centre and Navigation College, and employees of Guangzhou Ocean Ship Company.

本中文船用系统的设计历时半年，期间得到了学校信息工程学院、研究所和航海学院老师以及广州远洋船舶运输公司通导部同志的鼎力支持。

The algorithm of adaptive PID can change the coefficients of proportional, integral and differential gains according to the condition of weather, sea states, loading and the heading error so as to suit the demands of ship's navigation.

适应式PID算法是根据船舶航行时的天气、海况、负载及航偏角大小改变PID比例、积分、微分系数以适应船舶航行需求；

The main research contents of the thesis are listed as follows: ( 1) For the target ship, by lookup the inland river recorded navigation data is in the RFID database, a video containing the ship information can be obtained with CCTV database interaction and queries.

论文主要研究内容如下所示：（1）对于目标船舶，在RFID数据库中查找到其在内河的航行数据记录，通过与CCTV数据库的交互及查询可以得到包含船舶的视频文件信息。

As a main ship navigation device, GPS has high precision, all weather, real time orientation and navigation feature.

GPS具有高精度、全天候、实时定位与导航功能，是目前海上航行的主要导航设备。

Ocean current exerts a great influence on ship navigation and sailing safety.

海流对船舶导航、航行安全影响较大。

The ship's navigation system finally recorded the largest waves.

该船的导航系统最终记录到了最大的海浪。

Voyage Data Recorder ( VDR) is commonly called as the ship black box, which is a kind of intelligent recorder devoted to recording and preservation important information and parameters during ship navigation process. Its function is equivalent to aircraft "black box".

船舶航行数据记录仪（voyage data recorder缩写VDR）俗称船用黑匣子，是专门用于记录和保存船舶航行过程重要信息参数的智能化记录设备，其功用相当于飞机上的黑匣子。

The prediction of ship motion is significant for ship navigation, but there is no effective solution to the ship pitching problem so far, and Time Series, Period Graph Method, Neural Networks and Grey System Theory were used to study the motion of a ship.

以往曾有人利用时间序列法、周期图法、神经网络法及灰色系统理论等方法来研究船的运动.目前还没有一种有效的方法解决船的纵摇。

Radar ship navigation system has the same field test question as an integral part of VTS.

船舶导航雷达作为VTS系统 不可缺少的一部分,同样存在着外场测试不方便的问题.

For the influence of South-to-North Water Diversion Project to Yangzhou ship locks, the design maximum water level is higher than the normal water level of the Grand Canal, the high water head affects its' operation, management and navigation.

南水北调东线工程实施后，京杭运河的正常水位比设计最高通航水位还高0.5m，对船闸的运行管理和船只通航带来一定影响。

The Application Research of Data Mining Technology in the Assisting Ship Navigation Using Ocean Current

数据挖掘技术在海流要素辅助船舶导航中的应用研究

The requirements of reality and effect of wave simulation are different for the purpose of ship navigation, replenishment, evaluation of experiments such as in shore and off shore etc, and ship manoeuvring simulator.

船舶的海上航行，海上补给，靠岸离岸等实验的验证评估，船舶操纵模拟器的应用，这些都对海浪的视景仿真的真实度和效果提出了不同程度的要求。

Dynamic Visualization Systems of Flow Field, River Bed and Ship Navigation

流场、河床及航行的动态演示系统